Animating point series?

I am new using Graph. I have a number of point series and I want to make an
animation in which you see sequentially the point series. Is that possible?

Thank you

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Re: Animating point series?

Ignacio wrote:
> I am new using Graph. I have a number of point series and I want to make an
> animation in which you see sequentially the point series. Is that possible?

If I understand you correctly you want to create an animation where the 
points in the point series appear one at a time. The animation feature 
wasn't designed for this, but I have attached a file that shows a way to 
do it with a little trick.

If you try to animate a from 0 to 4 with a step of 1 you will see the 
points appear one at a time. This is done by making sure that each point 
is only valid when a is greater than a certain value. For example the 
first point is defined as x=1, y=if(a<1,undef,2), which means that the 
point is undefined when a is less than 1, while it is (1,2) when a 
reaches 1 and above.

Best regards
Ivan Johansen

;This file was created by Graph (http://www.padowan.dk)
;Do not change this file from other programs.
[Graph]
Version = 4.3.0.346
MinVersion = 2.5
OS = Windows 2000 5.0 Service Pack 4

[Axes]
xMin = -10
xMax = 10

Minimum

Hi
I can't find minimum for
f(x)=sqrt(x^2+800^2)+sqrt((2000-x)^2+500^2)
in GRAPH.
I use EVALUATE and EKSTREMUM, but Graph just stop.
Can anyone help?

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Re: Minimum

Søren wrote:
> I can't find minimum for
> f(x)=sqrt(x^2+800^2)+sqrt((2000-x)^2+500^2)
> in GRAPH.
> I use EVALUATE and EKSTREMUM, but Graph just stop.

Thank you for reporting this problem. I have been looking into it and 
found that the problem occurs when Graph cannot determine the extremum 
accurate enough. I have now fixed it in the beta version of Graph 4.3 so 
Graph will stop when the extremum cannot be found more accurate.

You can find the beta version of Graph 4.3 at:
http://padowan.dk/graph/DownloadBeta.php

Best regards
Ivan Johansen

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Re: Animating point series?

Thank you. This is exactly what I needed.

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square grid?

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Re: square grid?

Have you looked at the menu bar? More specifically, Zoom->Square?

Matt

Arye Shapiro wrote:
>
> Hi,
>
> I’m a new Graph user. Is it possible to have a square grid? Right now 
> all I can get is a rectangular one.
>
> Thanks,
>
> Arye
>
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Re: square grid?

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Function grouping, visibility and identification

Thanks again for such an excellent piece of software.
Some suggestions for enhancing the usability of the user interface:

- provide easier access to the visibility checkbox, by moving it right next to
the corresponding item in the left tree-pane.

-provide multiple selection for items in the tree: this would allow bulk
deleting functions or setting their visibility or color.

- provide a way to identify which function is which by, for instance, clicking
on a part of its graph and then highlighting its definition or, viceversa, by
clicking on its definition in the tree and highlighting its graph.
This would be a great time saver when there are lots of functions in the same
graph, maybe plotted in the same colour.

- provide a grouping facility for items in that pane. What I mean is that it
would be great if one could group, say, three functions under the same "subtree"
and control some common parameter (line color, visibility, etc.) by just
modifying the group properties. 
Just to give an example of the scenarios I have in my mind: say I have to test a
plot of different formulas for the same exam exercise (I work as a teacher), I
would then group all those functions under the same group. Then, to devise a
different version of the same exercise, I would copy the group and make slight
modifications to the copy. I will then have two groups of functions in the same
graph, which could be plotted together to compare them, or individually, in
order to, say, print an hardcopy to hand out to students as solutions.
Even just a single hyerarchy level would be fine, but maybe also a multiple
level hyerarchy would be useful (groups, subgroups, sub-subgroups, and so on..)
to organize in one single file many functions. This could be useful to create a
sort of simple archive of frequently used functions, organized, for instance,
according to their "kind": polynomial, rational, irrational, exponential, etc.,
and then according to their complexity. Another use would be to have an archive
of exercises, organized by dificulty level, year, topic and so on.

Best Regards,
Lorenzo Donati

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Re: function

can you please tell me how i would input

sin * pi * t / 14  = y

that equation into your program because i have a maths assignement and 
need to print out a graph

thank you :)

would be greatly appreciated.

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